I think 14 is B (idrk) and 15 is definitely C
Answer:
a)0.2240
b)0.5768
Step-by-step explanation:
Given:
µ=3
Poison probability is given by :

a) Evaluating at k=3

b)Evaluating at k=0,1,2:



Use complement rule:
P(x≥3)= 1 - f(0) - f(1) - f(2)= 1- 0.0498 - 0.1494 - 0.2240 =0.5768
(24)(.25)=6 dollars more per hour
24+6=30
Answer:
it's almost 12 years
Step-by-step explanation: